Just to save everyone's time:<p>This article is almost free of information and the conclusion is a slightly extended version of the headline:<p>"[...] So, do aliens exist? Many scientists believe that humans need to work even harder to determine whether there is extraterrestrial life out there, let alone whether or not aliens have visited Earth. [...]"<p>The opening question remains unanswered.
Judging by our primitive visits to Mars at best we could hope for some sort of wreckage or abandoned one-way technology.<p>If we look at our visits to the ocean depths, we only leave real time traces of our presence.<p>Assuming we aren’t the aliens and that aliens didn’t seed our planet with life, then if they did visit they didn’t find it compelling enough to stay for very long.
> Interested in all things in outer space and exploration? We are too. Take a look at open positions at Northrop Grumman and consider joining our team.<p>Looks like Northop Grumann is targeting the Jeremy Kenyon Lockyer Corbells of the world.